N˚ Exp.	Factors					Responses
	Temperature: U₁	Stirring speed: U₂	Reaction time: U₃	Type of alcohol. U₄	Type of catalyst: U₅	Specific gravity (15˚C): Y₁	Kinematic viscosity (37.8˚C): Y₂
	(˚C)	(rpm)	(min)				(cSt)
1	80	1100	145	EtOH	KOH	0.885	7.08
2	30	1100	145	MeOH	H₂SO₄	0.898	10.18
3	30	300	145	MeOH	KOH	0.891	8.25
4	80	300	45	MeOH	KOH	0.894	10.35
5	30	1100	45	EtOH	KOH	0.885	7.70
6	80	300	145	EtOH	H₂SO₄	0.901	9.72
7	80	1100	45	MeOH	H₂SO₄	0.894	8.06
8	30	300	45	EtOH	H₂SO₄	0.901	10.44